• Our class,in fact, is just before lunch time, and I'm happy to say that when they do my class, they don't need lunch any more because they eat what they make."

    VOA: standard.2010.05.14

  • So we don't need to put any more bonds in there.

    因此我们不用再往上加更多的键了。

    麻省理工公开课 - 化学原理课程节选

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